Investigating the Effect of Equiaxed and Lamellar Microstructure on Critical Damage of Ti-6Al-4V in Isothermal Compression of Grooved Double-Cone Specimens

Mirahmadi, S. Javid; Hamedi, Mohsen; Zoei, Maedeh Sadat

doi:10.22034/jssta.2021.247260.1005

Document Type : Original Article

Authors

¹ Faculty of Mechanical Engineering College of Engineering, University of Tehran

² Faculty Member/Institute of Materials and Energy/ Iranian Space Research Center/ Isfahan/ Iran

https://doi.org/10.22034/jssta.2021.247260.1005

Abstract

Ti-6Al-4V is one of the most common materials in the aerospace industry. For example, satellite fuel tanks are made of this alloy. Among manufacturing processes, forming processes is one of the most widely used areas in the manufacture of Ti-6Al-4V components. Due to the importance of determining the allowable deformation limit in the successful design of the Ti-6Al-4V forming process, in this paper, the amount of critical damage was studied. For this purpose, parts with double-cone geometry with grooves on the maximum diameter with two initial microstructure, lamellar and equiaxed, were fabricated and subjected to hot compression testing. The results showed that the initial equiaxed microstructure provides good accumulated damage tolerance. Up to 2.38, 2.67, and 5.89 accumulated damage values, according to Cockcroft-Latham, Brozo, and McClintock criteria, respectively, no crack was observed on the samples. However, with an initial lamellar microstructure, the damage tolerance was significantly reduced. The critical damage value based on Cockcroft-Latham, Brozzo and McClintock criteria was 1.05±0.02, 1.03±0.02, and 2.56±0.05, respectively

Keywords

20.1001.1.27834557.1400.1.1.7.0

Main Subjects

Structure

References

[1] R. Hambli and D. Badie-Levet, "Damage and fracture simulation during the extrusion processes," Computer Methods in Applied Mechanics and Engineering, vol. 186, no. 1, pp. 109-120, 2000.

[2] A. T. Domanti, D. J. Horrobin, and J. Bridgwater, "An investigation of fracture criteria for predicting surface fracture in paste extrusion," International Journal of Mechanical Sciences, vol. 44, no. 7, pp. 1381-1410, 2002.

[3] R. Hambli and M. Reszka, "Fracture criteria identification using an inverse technique method and blanking experiment," International Journal of Mechanical Sciences, vol. 44, no. 7, pp. 1349-1361, 2002.

[4] A. Ragab, "Fracture limit curve in upset forging of cylinders," Mater Sci Eng A, vol. 334, no. 1, pp. 114-119, 2002.

[5] S. Wan Chung, S. Jo Kim, and J. Hee Kim, "Finite element simulation of metal forming and in-plane crack propagation using ductile continuum damage model," Computers & structures, vol. 80, no. 23, pp. 1771-1788, 2002.

[6] K. Komori, "Ductile fracture criteria for simulating shear by node separation method," Theoretical and Applied Fracture Mechanics, vol. 43, no. 1, pp. 101-114, 2005.

[7] K. Saanouni, "On the numerical prediction of the ductile fracture in metal forming," Engineering Fracture Mechanics, vol. 75, no. 11, pp. 3545-3559, 2008.

[8] M. Zhan, C. Gu, Z. Jiang, L. Hu, and H. Yang, "Application of ductile fracture criteria in spin-forming and tube-bending processes," Computational Materials Science, vol. 47, no. 2, pp. 353-365, 2009.

[9] J.-S. Choi, H.-C. Lee, and Y.-T. Im, "A study on chevron crack formation and evolution in a cold extrusion," (in English), J Mech Sci Technol, vol. 24, no. 9, pp. 1885-1890, 2010/09/01 2010, doi: 10.1007/s12206-010-0605-z.

[10] Y. Zhu, W. Zeng, F. Zhang, Y. Zhao, X. Zhang, and K. Wang, "A new methodology for prediction of fracture initiation in hot compression of Ti40 titanium alloy," Materials Science and Engineering: A, vol. 553, pp. 112-118, 2012.

[11] Y. Lou and H. Huh, "Prediction of ductile fracture for advanced high strength steel with a new criterion: Experiments and simulation," J Mater Process Technol, vol. 213, no. 8, pp. 1284-1302, 8// 2013, doi: http://dx.doi.org/10.1016/j.jmatprotec.2013.03.001.

[12] R. Lapovok, V. Mendoza, V. N. Anumalasetty, and P. D. Hodgson, "Prediction of ductile failure in CP-Titanium as criterion of SPD process design," J Mater Process Technol, vol. 229, pp. 678-686, 2016.

[13] G.-Z. Quan, Z.-Y. Zou, D.-S. Wu, and J.-T. Liang, "Prediction of ductile fracture initiation for Ti–10V–2Fe–3Al alloy by compressions at different temperatures and strain rates," Materials at High Temperatures, vol. 33, no. 1, pp. 6-14, 2016.

[14] J. Zhai et al., "Modeling the ductile damage process in commercially pure titanium," International Journal of Solids and Structures, vol. 91, pp. 26-45, 2016.

[15] G. Chen, C. Ren, L. Lu, Z. Ke, X. Qin, and X. Ge, "Determination of ductile damage behaviors of high strain rate compression deformation for Ti-6Al-4V alloy using experimental-numerical combined approach," Engineering Fracture Mechanics, vol. 200, pp. 499-520, 2018.

[16] W. Xu, H. Wu, H. Ma, and D. Shan, "Damage evolution and ductile fracture prediction during tube spinning of titanium alloy," International Journal of Mechanical Sciences, vol. 135, pp. 226-239, 2018.

[17] L. Gao, J. Zhao, G.-z. Quan, W. Xiong, and C. An, "Study on the Evolution of Damage Degradation at Different Temperatures and Strain Rates for Ti-6Al-4V Alloy," High Temperature Materials and Processes, vol. 38, no. 2019, pp. 332-341, 2019.

[18] Z. Pater, J. Tomczak, and T. Bulzak, "Rotary compression as a new calibration test for prediction of a critical damage value," Journal of Materials Research and Technology, 2020.

[19] Z. Pater, J. Tomczak, T. Bulzak, Ł. Wójcik, and P. Walczuk, "Assessment of ductile fracture criteria with respect to their application in the modeling of cross wedge rolling," J Mater Process Technol, vol. 278, p. 116501, 2020.

[20] A. M. Freudenthal, The Inelastic Behavior of Solids. New York: Wiley, 1950.

[21] M. Cockcroft and D. Latham, "Ductility and the workability of metals," Journal Institute of Metals, vol. 96, no. 1, pp. 33-39, 1968.

[22] P. Brozzo, B. Deluca, and R. Rendina, "A new method for the prediction of formability limits in metal sheets," in Proc. 7th biennal Conf. IDDR, 1972.

[23] F. A. McClintock, "A criterion for ductile fracture by the growth of holes," J Appl Mech, vol. 35, no. 2, pp. 363-371, 1968.

[24] M. Oyane, T. Sato, K. Okimoto, and S. Shima, "Criteria for ductile fracture and their applications," J Mech Work Technol, vol. 4, no. 1, pp. 65-81, 1980.

[25] S. J. Mirahmadi, M. Hamedi, and M. Cheraghzadeh, "Investigating friction factor in forging of Ti-6Al-4V through isothermal ring compression test," Tribology Transactions, vol. 58, no. 5, pp. 778-785, 2015.

[26] Y. Prasad, T. Seshacharyulu, S. Medeiros, and W. Frazier, "Microstructural modeling and process control during hot working of commercial Ti-6Al-4V: Response of lamellar and equiaxed starting microstructures," Mater Manuf Process, vol. 15, no. 4, pp. 581-604, 2000.

[27] T. Seshacharyulu, S. Medeiros, W. Frazier, and Y. Prasad, "Microstructural mechanisms during hot working of commercial grade Ti–6Al–4V with lamellar starting structure," Mater Sci Eng A, vol. 325, no. 1, pp. 112-125, 2002.

Space Science, Technology and Applications

Investigating the Effect of Equiaxed and Lamellar Microstructure on Critical Damage of Ti-6Al-4V in Isothermal Compression of Grooved Double-Cone Specimens

References

References

Volume 1, Issue 1 - Serial Number 1
September 2021
Pages 81-91

Investigating the Effect of Equiaxed and Lamellar Microstructure on Critical Damage of Ti-6Al-4V in Isothermal Compression of Grooved Double-Cone Specimens

References

References

Volume 1, Issue 1 - Serial Number 1September 2021Pages 81-91

Volume 1, Issue 1 - Serial Number 1
September 2021
Pages 81-91